Wrench.



G. 0. BEA N & F. L. BALDWIN. 1. L. BALDWIN, ADMINISTRATOR or o. o. BEAN, nzzo'n.

WRENCH.

' APPLIGATION FILED OUT. 14, 1908.

Patented May 25, 1909.

2 SHEETS-{BERT 1.

"1% in eases 0. 0. BEAN M. L. BALDWIN. I. L. BALDWIN, ADMINISIRATDR 0P 0. 0, BEAN, DEGD.

' Patented May 25; 1909.

2 sums-SHEET a WRENGH: APPLICATION TILED 001. 14, 1908.

: WEE

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Witness ,V 35% 36% 6" of a pipe section or other article of circular I STATES PAT NT oEEIoE.

i To all wliomit may concern:

FRED L. ALDWIN,ADMINISTRATo oE oHARLES 0. BEAN, DECEASED, AND FRED L. BALD- I or FRANKLIN, W HAMPSHIRE; SAID BALDWIN, ADMINISTRATOR, AND SAID B L IN, INDIVIDUALLY, AssIeNoRs TO SAID BALDWIN.

WREN CH.

Be itknownthatOHARLEs O. BEAN, deceased, late a citizenjof the United States, residing at Franklin, in the county of Merrimack. and State of .New Hampshire, and I, FRED L. BALDWIN, of the same place, did in the lifetime of the saidOHARLEs O. BEAN, deceased, jointly invent new and useful Improvements inWrenchespof which the following is a specification.

, I Our invention pertains to wrenches of the sliding" jaw type; and it has for one of its ob ects to provide] afwrench comprising members adjustable each with respect to the other and adaptedto be manipulated and used to advantage as calipers when occasion demands. '1

I Another object of. the invention is the provision of a wrench having jaws so shaped and arranged that they may be inserted and used in narrow confines.

Another object is the provision of a wrench embodying jaw facings so constructed and connected to the wrench members that requires, said facings may be expeditiously V and eas1ly removed and as readily replaced with other facings adapted to take hold form in MOSS-8601310113} for preventing stripping of the threads of the connectingmeans;

Anotheriobject is theprovision of wrench comprising. a -mov'able rack and means for adjusting ,and vadjustably fixing the same, this with a view. of adapting the wrench to be nicely adjusted. I

7 Other objects of the invention will be fully understood from the following description and claims when the same are read in connectlon "wlth'the drawings, accompanymg and forming p t. f this Specification, m 'Wllichfi I Figure 1 is a side elevation of a wrench Specification of Letters Patent.

Patented May 25, 1909.

i 1 Application filed October 14, 1908. Serial No. 457,684.

by dotted lines. Fig. 2 is an inverted plan view of the upper member of the wrench. Fig. 3 is a plan view of the lower wrench member. Fig. 4 is a transverse section taken in the plane of the line 44 in Fig. 1 and showing the bolt in elevation. Fig. 5 is a transverse section taken in the plane indicated by the line 5-5 of Fig. 1. Fig. 6 is a detail longitudinal section showing the arrangement of one of the feathers for reventing the members swinging out of a inement, and also showing the spring strip on said feather. Fig. 7 is a detail section taken in the plane indicated by line 77 of Fig. 1. Fig. 8 is a perspective view of one of the removable j aw-facings of the wrench. Figs. 9 10 and 11 are detail views illustrative of a modification hereinafter fully referred to.

Referring by letter to the said drawings and particularly to Figs. 1 to 8 thereof: A is the upper member, and B, the lower member of our novel wrench, which members are adapted to be moved laterally toward and from each other, and are also adapted to be moved lengthwise each with respect to the other. The member A is provided at one end with an outer jaw a and at its other end with an inner jaw b, and the member B is provided at one end with an outer jaw c opposed to the inner jaw of member A, and at its opposite end has an inner jaw d opposed to the outer jaw a of member A. It will also be observed by reference to Fig. 1 that the several jaws of the members A and B are tapered toward their outer ends and hence either end of the wrench is adapted to be introduced into a socket or other small place and manipulated to advantage. The inner sides'of the jaws b and d are grooved, as indicated by e and j, respectively, to receive tongues g and h on facings i and j, which facings i and j are detachably connected to the jaws b and d through the medium of c'onstltutmg a practical embodiment of our dental to the use of the wrench, and yet said invention; the adjustment of one member of facings may be readily removed when worn said wrench 'relative'to the other being shown or broken and replaced with new facings of corresponding character, this with a view of prolonging the usefulness of the wrench as a l whole; and it will also be manifest that when occasion demands the facings i and may be 5 replaced with facings (not shown) adapted to take hold of a pipe section or other article of circular form in cross-section.

As best shown in Fig. 2, the upper member A is provided with a longitudinal, vertically disposed slot p, a longitudinal recess 1* in its inner side near one end of said slot, a longitudinal groove .9 in its inner side at the oppo site end of the slot p, and racks t arranged at opposite sides of and parallel to the said groove 8. The lower member B is provided as best shown in Fig. 3 with a verticallydisposed, threaded aperture i1. designed to register with the slot p of member A and. is also provided in its inner or upper side with a seat 1) which surrounds said aperture. It will also be seen by reference to Figs. 1 and that the member B is provided in its inner I side, at one side of the aperture u, with a longitudinal groove 10, and that in its inner side, at the opposite side of said aperture u, the said member B is provided with a longitudinal recess a; and racks y disposed at opposite sides of and parallel to said recess.

0, Figs. 1 and 4, is a headed and threaded bolt, extending loosely through the slot p in the member A and into the threaded aperture u of member B and having for its oflice to connect said members A and B.

D is a coiled spring arranged in the seat 1; and between the members B and A, and designed to expand and press said members apart when the bolt C is turned upward and also designed to be compressed and. put under tension when the members A and B are drawn together through the medium of the bolt.

E is a feather seated in the recess a: of member B and extending into the groove 8 of member A and having for its function to permit sliding endwise movement of either member on the other and at the same time effectually prevent either member swinging out of alinement with the other.

F is a spring strip arranged on and connected to one end of the feather E and designed, when the bolt 0 is turned u 'nvard, to serve as an auxiliary spring in assisting the spring D in spreading the members A and B apart; and G, see dotted lines in Fig. 1, is a. feather disposed in the seat 1 of member A and extending into the groove 10 of member B and designed to serve as an auxiliary to the feather E in permitting endwise movement of either member on the other while T preventing said members swinging out of alinement.

It will be noted from the foregoing that when the bolt C is turned upward to enable the springs to separate the members A and B and disengage the racks t on the former from the racks y of the latter, either of the members may be expeditiously and easily adjusted endwise on the other to increase or diminish the distance between the opposed jaws of the members and fit said jaws to turn articles of various sizes; and it will also be noted that when separated as stated, the members A and B may be used to advantage as calipers. It will further be noted that when the members A and B are brought together by manipulation of the bolt and against the action of the springs, the racks 1 cooperating with the racks 25 will adjustably fix the members A and B with respect to each other and preclude casual movement of one member on the other.

When deemed expedient or desirable, transverse grooves H and I, of angular from in cross-section may be provided in the opposed faces of the members A and B. These grooves H and I adapt the wrench for turn ing taps and reamers, and by adjusting the members A and B laterally through the medium of the bolt C, it will be apparent that the wrench niay be nicely fitted to taps or reamers of anions sizes in cross-section.

The strain. imposed on the wrench when the same is manipulated to unscrew or screw up a nut or other element springs the members A and B apart, and, therefore, with a view of taking the strain off the thread of the bolt C and the thread engaged thereby, I provide the band D", Fig. 1, which band is preferably of steel, and is preferably removably fastened by a screw (Z to one of the members, and is of such size and so relatively arranged as to permit the members to separate far enough to clear the rack teeth when moved back and forth rectilinearly. As will be readily understood said band D will serve to effectually prevent stripping of the thread of the bolt C or injury to the thread in the aperture u when the members are separated incidental to the use of the wrench and in that way will lend. increased strength to the wrench as a whole and materially prolong the usefulness thereof.

In addition to the practical advantages hereinbefore ascribed to the embodiment of our invention shown in Figs. 1 to 8, it will be observed that the said embodiment is simple and inexpensive in construction and at the same time is compact and well adapted to withstand the hard usage and strains to which wrenches are ordinarily subjected.

In Figs. 9, 10 and 11, we illustrate a modified wrench comprising a member B having a rack-section y fixed in and projecting slightly above the upper or inner face thereof, an upper member A, an endwise adjustable rack t carried by said member A and having its teeth arranged flush with or slightly within the inner face of said member, an expansion coiled-spring L interposed between the inner end of the rack t and the member-A and arranged to be compressed or put I under tension by inward movement of the rack, a screw m bearing mthe member A and against the outer end of the rack t, and

and when the washer Nis removed from between the'members A and B and the said bolt is turned downward, itwill be seen that therack y engaging the rack t will adjust- I ablylfixthe members together.

p The practical advantage of the rack 6 adjustable with respect to the member A by which it is carried willbe appreciated when it is remembered that it isnot expedient to cut the rack teeth any finer than sixteen to the inch,,and when it is necessary to adjust one member a distance less than one-s1xteenth of an inch on the other such ad ust- I ment may be attained by previously adjusting the rack t in the direction and to the =30 extent necessary. I

Whilewe have specifically describedthe construction and relative arrangement of the parts in both embodiments of our invention, it is obvious that in practice such changes in the form, construction A and relative arrangement Oflparts may be made as fairly fall within the scope of ourinvention as defined in the claims appended.

Having described our invention, what we claim and desire to secure by LettersPatent of the United States, is:

1.-The combination in a wrench, of mem bers adjustable endwise and laterally with respect to each other; one of said members being provided with a longitudinal slot and the other-with a threaded aperture registered with the slot, and one member having a longitudinalfgroove and longitudinal racks at opposite sides of said groove and the other member having a feather disposed in "said groove and longitudinal" racks disposed at opposite sides of the feather, and one mem ber also having a seat a) in its inner side, a headed and threaded bolt extendingthrough the slot of'one member and into the threaded aperture of the other,a coiled spring disposed in. the seat'v' and surrounding said bolt and interposed between the members. a spring stripconnected to the feather and ar ranged on the outer edge thereof, whereby it isadaptedtoserve-as an auxiliary to the coiled spring in exerting outward pressure on one member, and an auxiliary feather, arranged at the opposite side of the bolt, with reference to the first named feather, and carried by one member and extending into a longitudinal groove of the other.

21 The combination in a wrench, of members adjustable endwise and laterally with respect to each other; one of said members being provided with a longitudinal slot and the other with a threaded aperture registered with the slot, and one member having a longitudinal groove and longitudinal racks at opposite sides of said groove and the other member having a feather disposed in said groove and longitudinal racks disposed at opposite sides of the feather, and one member also having a seat 4) in its inner side, a headed and threaded bolt extending through the slot of one member and into the threaded aperture of the other, a coiled spring disposed in the seat 1) and surrounding said bolt and interposed between the members, a spring strip connected to the feather and arranged on the outer edge thereof, whereby it is adapted to serve as an auxiliary to the coiled spring in exerting outward pressure on one member, an auxiliary feather arranged at the opposite side of the bolt, with reference to the first-named feather, and carried by one member and extending into a longi tudinal groove of the other, and a band surrounding the members and fixed to one member; the said band being of a greater length than the combined thickness of the two members to permit lateral separation thereof and limit said separation.

3. The combination in a wrench, of members adjustable endwise and laterally with respect to each other; one of said members being provided with a longitudinal slot, and the other with a threaded aperture registered with the slot, and both members having racks, a threaded bolt extending through the slot of one member and into the threaded aperture of the other, and a band surrounding the members and fixed to one member; the said band being of a greater length than the combined thickness of the two members to permit lateral separation thereof and limit said separation.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

Witnesses GILBERT G. FELLOWS, SUMNER MARviN. 

